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Finding the Fourth Proportional to 219,410.70, 307,589.70 and 219,410.70

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Solution

The fourth proportional to 219,410.70, 307,589.70 and 219,410.70 is: 307,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,410.70 : 307,589.70 = 219,410.70 : x
  2. Step 2: Convert to fraction form
    219,410.70/307,589.70 = 219,410.70/x
  3. Step 3: Cross multiply
    219,410.70x = 307,589.70 × 219,410.70
  4. Step 4: Simplify right side
    219,410.70x = 67,488,471,389.79
  5. Step 5: Solve for x
    x = 67,488,471,389.79/219,410.70
  6. Step 6: Final answer
    x = 307,589.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.